fix(mantine): make table root have 100% width

[gdostie]

Proposed Changes

For most implementations, this fix will be transparent. It mostly impacts tables that are displayed within a flex container. In this situation, the table will take the full with of that flex container instead of minimally fitting the content of the table.

Example

If we imagine the following component:

<Box display="flex">
    <Table {...} />
</Box>

Before

After

Potential Breaking Changes

Acceptance Criteria

• The proposed changes are covered by unit tests
• The potential breaking changes are clearly identified
• README.md is adjusted to reflect the proposed changes (if relevant)

[github-actions]

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